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<p>[QUOTE=&quot;-jeffB, post: 5193566, member: 27832&quot;]Yep. And I&#039;ll bet the folks who sold the systems to you called it &quot;rapid prototyping&quot;.</p><p><br /></p><p>I popped over to the Wikipedia article on 3D printing, and was a bit surprised to see that the first patent for 3D printing of metal objects was granted in <b>1971</b>.</p><p><br /></p><p>As for the &quot;models&quot; on the page OP linked -- I don&#039;t think we need to worry about anyone using them to &quot;3D print coins&quot;. But I would guess a motivated criminal could use them to drive a CAD/CAM setup to make <i>dies</i> -- more likely with a computer-controlled mill rather than an additive system. But, really, the only new thing here is someone putting the models out on the Internet for purchase. I don&#039;t think they&#039;re likely to get rich off this, especially when a criminal only needs to buy the model once, if that.[/QUOTE]</p><p><br /></p>

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